C ++错误：找不到成员声明 [英] C++ error : Member declaration not found

问题描述

我有一个想要在Linux上移植的Windows c ++代码



MyClass.h

I have a windows c++ code i want to port on Linux

MyClass.h

class MyClass
{
private:
	#ifdef WIN32
		CRITICAL_SECTION _mutex_obj_;
	#else
		pthread_mutex_t _mutex_obj_;
		pthread_mutexattr_t _mutex_obj__attr_;
	#endif
protected:

public:
	MyClass();
	virtual ~MyClass();

};

MyClass.cpp

MyClass.cpp

MyClass::MyClass()
{
	#ifdef WIN32
		InitializeCriticalSection(&_mutex_obj_);
	#else
		pthread_mutexattr_init(&_mutex_obj__attr_);
		pthread_mutex_init(&_mutex_obj_, &_mutex_obj__attr_);
		pthread_mutexattr_destroy(&_mutex_obj__attr_);
	#endif

}

MyClass::~MyClass()
{

}

编译后我收到此错误未找到会员声明



感谢先进的

when compiled i get this error Member declaration not found

Thanks in advanced

推荐答案

此代码：

This code:

#ifndef WIN32
#include <pthread.h>
#endif

class MyClass
{
private:
  #ifdef WIN32
    CRITICAL_SECTION _mutex_obj_;
  #else
    pthread_mutex_t _mutex_obj_;
    pthread_mutexattr_t _mutex_obj__attr_;
  #endif
protected:

public:
  MyClass();
  virtual ~MyClass();

};

MyClass::MyClass()
{
  #ifdef WIN32
    InitializeCriticalSection(&_mutex_obj_);
  #else
    pthread_mutexattr_init(&_mutex_obj__attr_);
    pthread_mutex_init(&_mutex_obj_, &_mutex_obj__attr_);
    pthread_mutexattr_destroy(&_mutex_obj__attr_);
  #endif

}

MyClass::~MyClass()
{

}

int main()
{
  MyClass mc;
}

在我的Ubuntu盒子上编译（并运行）正常（不要忘记链接 pthread library）。

compiles (and runs) fine on my Ubuntu box (don't forget to link with pthread library).

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